极地无人机研究文献的调研与分析

本文运用情报学分析方法,利用WoK平台,搜集无人机应用在极地研究方面的相关文献,通过文献计量和社会网络分析方法对这些相关文献的作者、机构、研究主题、国家等方面作分析,以期透过情报学分析方法了解无人机在南北极的应用情况,辅助我国极地科技发展战略的制定。     

沿着冰上丝绸之路——俄罗斯东北部多年冻土地区交通网络发展

依托于冰上丝绸之路,阐述了俄罗斯东北部现有交通网络的规模和交通条件.每条交通路线上的城市节点和资源.介绍了具有全球重要性的西伯利亚和远东的资源潜力.这些地区开发资源的同时,也带动着本地交通系统的发展.特别是萨哈(雅库特)共和国一些工业发展地区的开发,将会成为雅库茨克向西北方向建设铁路的先决条件.这些铁路的建成也将更好的与西伯利亚和东伯利亚的"北纬航道"相连.在现有的网络发展中,该地区连接欧洲和亚洲的运输成为可能.     

“Depend On,Rely On,Count On”: Economic Subjectivities Aboard <Emphasis Type="Italic">The Polar Express</Emphasis>

Christmas literature and film produced for children is an important, albeit under-researched, site for the production of cultural values and norms. This paper analyses Chris Van Allsburg’s 1985 picture book The Polar Express, the 2004 Warner Brothers feature film of the same title, the film’s official website, and resources for teachers distributed online by Houghton Mifflin, considering how these texts construct childhood subjectivities in economic terms. The argument made is that nostalgic depictions of ordered, middle-class lifestyles, the representation of social class inequalities as immutable structural norms, and signifiers of corporate capitalism, together locate childhood and child subjectivities as inexorably tethered to socio-economic circumstance and experience. Dr. Sue Saltmarsh is a Senior Lecturer in the School of Teacher Education at Charles Sturt University, Australia, where she lectures in Cultural Politics of Education and Qualitative Research Methods. Sue’s recent work concerns the ways that cultural texts and practices construct children and childhood in economic terms, utilising poststructuralist theory as a lens through which to explore the discursive production of economic subjectivities.     

一阶二次微分方程在极坐标变换下的求解定理

本文给出了一阶二次微分方程在极坐标变换下的求解定理，提供了一种求解一阶二次微分方程的方法和途径。     

网络舆情意见挖掘中极性词典构建和极性识别方法研究

本研究通过对网络新词的构造规律分析,对表达情感的网络新词进行识别算法的设计,提出基于HowNet和网络情感词的极性词典的人工构建方法,引进了同义词表减少手工构建的工作量,并抓住网络新词往往是现有情感词的其他形式这一特点,设计了针对表达情感的网络新词的自动识别方法,进一步扩展极性词的收录范围。